polyaxial UK /ˌpɒl.iˈæk.si.əl/US /ˌpɑ.lɪˈæk.si.əl/ adjective2 •Having more than one axis.More modern, polyaxial designs allow screw angulation prior to end point locking, and these can be very useful if femoral component lugs or the like are encountered during drilling. — 2009 •Axial about more than one axis.